1666286060 has 48 divisors (see below), whose sum is σ = 3777278400. Its totient is φ = 615546624.

The previous prime is 1666286051. The next prime is 1666286081. The reversal of 1666286060 is 606826661.

It is a junction number, because it is equal to n+sod(n) for n = 1666285999 and 1666286017.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49115 + ... + 75794.

It is an arithmetic number, because the mean of its divisors is an integer number (78693300).

Almost surely, 2^1666286060 is an apocalyptic number.

1666286060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1666286060 is an abundant number, since it is smaller than the sum of its proper divisors (2110992340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1666286060 is a wasteful number, since it uses less digits than its factorization.

1666286060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124970 (or 124968 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 1666286060 is about 40820.1673195983. The cubic root of 1666286060 is about 1185.5408428054.

The spelling of 1666286060 in words is "one billion, six hundred sixty-six million, two hundred eighty-six thousand, sixty".